body{
    margin: 0;
    padding: 0;
	overflow-x：hidden;
	overflow-y：auto;
}
.topleft {
    position: fixed;
    z-index: 1;
    background-color: white;
    height: 56px;
    right: 0;
    padding: 20px;
    top: 0px;
    left: 0px;
    font-size: 18px; 
}
.top{
    margin:90px 40px;
    background-color: #EEEEEE;
    border:2px solid #DCDCDC;
    height: 58px;
    width: 860px;
    border-radius: 10px;
}
.search{
    margin: 10px 20px;
    float: left;
}
.information{
    position: absolute;
    width: 850px;
    left:18px;
    top:30px;
    font-size: 15px;
    text-align: center;
}
.background{
    position: absolute;
    background-color:#EEEEEE;
    border:2px solid #DCDCDC;
    border-radius: 10px;
    width: 890px;
    height: 550px;
    left:20px;
    top:200px;
}
.ul{
    position: absolute;
    top: 660px;
    left: 260px;
    width:520px;
    font-size: 18px;
    cursor: pointer;

}